Botany Chpt 10

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  1. Bacteriophages (phages)
    Bacterial viruses
  2. Proteins contain __________ but DNA does not?
  3. DNA and RNA are _________ ________ consisting of long chains of chemical units.
    nucleic acids
  4. Nucleaotides
    long chains (polymers) of chemical units (monomers) that make up DNA and RNA
  5. 4 types of nucleotides that make up DNA and RNA
    • (A) Adenine
    • (C) Cytosine
    • (T) Thymine
    • (G) Guanine
  6. Nucleotides consists of three components?
    • 1. A nitrogenous base
    • 2. a sugar
    • 3. A phosphate group
  7. ________ are joined to one another by covalent bonds between the sugar of one __________ and the phosphate of the next.
  8. A repeating pattern of sugar-phosphate-sugar-phosphate.
    sugar-phosphate backbone
  9. The four nucleotides found in DNA differ only in their _____________ __________.
    nitrogenous bases
  10. _________and _______ are single-ring structures called pyrimidines.
    Thymine (T) and Cytosine (C)
  11. Pyrimidines?
    single-ring structures of thymine and cytosine
  12. __________ and _________ are larger double-ring structures called purines.
    Adenine (A) and Guanine (G)
  13. Purines?
    larger, double-ring structures of adenine and guanine
  14. How is RNA different from DNA?
    • 1. sugar ring has --OH group attached to the C atom
    • 2. Instead of thymine RNA has uracil (U)
  15. Double Helix?
    Two polynucleotide strands combined that make up DNA
  16. A double-ringed base (purine) should always be paired with a ______-_______ on the opposite strand
    single-ringed base
  17. Semiconservative model?
    The model for DNA replication
Card Set
Botany Chpt 10
Botany chapter 10 study cards
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